使用System.XML读取XML

Question

我目前正在尝试读取一个给定的XML文件，该文件包含具有特定名称和子节点的特定节点。这是在用户为RATED_CURRENT选择一个特定值的函数中完成的。如果值与RATED_CURRENT值匹配，则读取子节点(如果没有发送错误代码)。

我遇到的问题是，目前，如果上面的代码我没有得到正确的内部文本和一些节点的名称。例如，如果一个名为"RATED_CURRENT“的节点在检查其内部值时，应该得到属于该节点的相应值。对于XML文件中的其他节点来说，这应该是相同的。因为这是一个例子..。用户输入:当前1240；如果内部节点文本与用户选择的内容匹配，则遍历所有标记为“额定当前”的节点。“读取节点的子节点。

这是有问题的特定XML文件。

<ROOT>
  <RATED_CURRENT>48<I_LINE_EST_A_SCALAR>7788<SAMPLE_COUNT>1</SAMPLE_COUNT></I_LINE_EST_A_SCALAR><I_LINE_EST_B_SCALAR>7255<SAMPLE_COUNT>1</SAMPLE_COUNT></I_LINE_EST_B_SCALAR><I_LINE_EST_C_SCALAR>7442<SAMPLE_COUNT>1</SAMPLE_COUNT></I_LINE_EST_C_SCALAR><I_TUNE_EST_A_SCALAR>7280<SAMPLE_COUNT>1</SAMPLE_COUNT></I_TUNE_EST_A_SCALAR><I_TUNE_EST_B_SCALAR>6987<SAMPLE_COUNT>1</SAMPLE_COUNT></I_TUNE_EST_B_SCALAR><I_TUNE_EST_C_SCALAR>7649<SAMPLE_COUNT>1</SAMPLE_COUNT></I_TUNE_EST_C_SCALAR></RATED_CURRENT>
  <RATED_CURRENT>76<I_LINE_EST_A_SCALAR>2000<SAMPLE_COUNT>7</SAMPLE_COUNT></I_LINE_EST_A_SCALAR><I_LINE_EST_B_SCALAR>1898<SAMPLE_COUNT>7</SAMPLE_COUNT></I_LINE_EST_B_SCALAR><I_LINE_EST_C_SCALAR>1946<SAMPLE_COUNT>7</SAMPLE_COUNT></I_LINE_EST_C_SCALAR><I_TUNE_EST_A_SCALAR>1938<SAMPLE_COUNT>7</SAMPLE_COUNT></I_TUNE_EST_A_SCALAR><I_TUNE_EST_B_SCALAR>1861<SAMPLE_COUNT>7</SAMPLE_COUNT></I_TUNE_EST_B_SCALAR><I_TUNE_EST_C_SCALAR>1991<SAMPLE_COUNT>7</SAMPLE_COUNT></I_TUNE_EST_C_SCALAR></RATED_CURRENT>
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  <RATED_CURRENT>8400<I_LINE_EST_A_SCALAR>18859<SAMPLE_COUNT>2</SAMPLE_COUNT></I_LINE_EST_A_SCALAR><I_LINE_EST_B_SCALAR>18552<SAMPLE_COUNT>2</SAMPLE_COUNT></I_LINE_EST_B_SCALAR><I_LINE_EST_C_SCALAR>18254<SAMPLE_COUNT>2</SAMPLE_COUNT></I_LINE_EST_C_SCALAR><I_TUNE_EST_A_SCALAR>10124<SAMPLE_COUNT>2</SAMPLE_COUNT></I_TUNE_EST_A_SCALAR><I_TUNE_EST_B_SCALAR>10116<SAMPLE_COUNT>2</SAMPLE_COUNT></I_TUNE_EST_B_SCALAR><I_TUNE_EST_C_SCALAR>10142<SAMPLE_COUNT>2</SAMPLE_COUNT></I_TUNE_EST_C_SCALAR></RATED_CURRENT>
  <RATED_CURRENT>9600<I_LINE_EST_A_SCALAR>18906<SAMPLE_COUNT>2</SAMPLE_COUNT></I_LINE_EST_A_SCALAR><I_LINE_EST_B_SCALAR>17818<SAMPLE_COUNT>2</SAMPLE_COUNT></I_LINE_EST_B_SCALAR><I_LINE_EST_C_SCALAR>18488<SAMPLE_COUNT>2</SAMPLE_COUNT></I_LINE_EST_C_SCALAR><I_TUNE_EST_A_SCALAR>14392<SAMPLE_COUNT>2</SAMPLE_COUNT></I_TUNE_EST_A_SCALAR><I_TUNE_EST_B_SCALAR>14402<SAMPLE_COUNT>2</SAMPLE_COUNT></I_TUNE_EST_B_SCALAR><I_TUNE_EST_C_SCALAR>14361<SAMPLE_COUNT>2</SAMPLE_COUNT></I_TUNE_EST_C_SCALAR></RATED_CURRENT>
  <RATED_CURRENT>10800<I_LINE_EST_A_SCALAR>19218<SAMPLE_COUNT>7</SAMPLE_COUNT></I_LINE_EST_A_SCALAR><I_LINE_EST_B_SCALAR>19312<SAMPLE_COUNT>7</SAMPLE_COUNT></I_LINE_EST_B_SCALAR><I_LINE_EST_C_SCALAR>19066<SAMPLE_COUNT>7</SAMPLE_COUNT></I_LINE_EST_C_SCALAR><I_TUNE_EST_A_SCALAR>15085<SAMPLE_COUNT>7</SAMPLE_COUNT></I_TUNE_EST_A_SCALAR><I_TUNE_EST_B_SCALAR>15020<SAMPLE_COUNT>7</SAMPLE_COUNT></I_TUNE_EST_B_SCALAR><I_TUNE_EST_C_SCALAR>14888<SAMPLE_COUNT>7</SAMPLE_COUNT></I_TUNE_EST_C_SCALAR></RATED_CURRENT>
</ROOT>

我怎么才能把这事做好？我现在用我的控制台输出写出了这段代码。目前，我得到的数字很大，而不是这个节点的实际内部文本值。

  public static CalibratorAverageErrorCode FindCurrentParameters(string filepath, string RatedCurrent)
    {
        xmlDoc.Load(filepath);

        int iterations = 0;

        Console.WriteLine(RatedCurrent);

        foreach (XmlNode node in xmlDoc.DocumentElement.ChildNodes)
        { 
            if (node.Name == NODE_NAME)
            {
                //for each main node check if the name inner value is equal to the actual node
                //if it then gets Parametervalues and information
                Console.WriteLine("Inner Text {0}\n", node.InnerText);
                Console.WriteLine("Value {0}\n", node.Value);
                Console.WriteLine("FirchChild", node.FirstChild.Name);

                if (node.InnerText == RatedCurrent)
                {
                    iterations++;

                    foreach (XmlNode childnode in node.ChildNodes)
                    {
                        Console.WriteLine("NAME: {0} : Data: {1} \n", childnode.Name, childnode.InnerText);
                    }
                }
            }
        }

        if( iterations <= 0)
        {
            return CalibratorAverageErrorCode.CURRENT_NOT_FOUND;
        }

        return CalibratorAverageErrorCode.NO_ERROR;

    } //end of function

​

​

Answer 1

下面使用XML并将结果放入DataTable

using System;
using System.Linq;
using System.Text;
using System.Collections;
using System.Collections.Generic;
using System.Xml;
using System.Xml.Linq;
using System.Data;

namespace ConsoleApp2
{
    class Program
    {
        const string FILENAME = @"c:\temp\test.xml";
        static void Main(string[] args)
        {
            XDocument doc = XDocument.Load(FILENAME);
            XElement ratedCurrent = doc.Descendants("RATED_CURRENT").FirstOrDefault();
            string[] children = ratedCurrent.Elements().Select(x => x.Name.LocalName).ToArray();


            DataTable dt = new DataTable();
            dt.Columns.Add("RATED_CURRENT", typeof(string));
            foreach(string child in children)
            {
                dt.Columns.Add(child, typeof(string));
                dt.Columns.Add(child + "_COUNT", typeof(string));
            }

            foreach(XElement rCurrent in doc.Descendants("RATED_CURRENT"))
            {
                DataRow row = dt.Rows.Add();
                row["RATED_CURRENT"] = int.Parse(rCurrent.FirstNode.ToString());
                foreach(XElement child in rCurrent.Elements())
                {
                    string columnName = child.Name.LocalName;
                    int value = int.Parse(child.FirstNode.ToString());
                    int count = (int)child.Element("SAMPLE_COUNT");
                    row[columnName] = value;
                    row[columnName + "_COUNT"] = count;
                }
            }



        }
 
    }


}